发明名称 KEYBOARD DEVICE FOR ELECTRONIC MUSICAL INSTRUMENT
摘要 PROBLEM TO BE SOLVED: To surely prevent the flow-in of a lubricant into a key switch, and to prevent an operation trouble of the key switch caused by the flow-in, by simple constitution even when the key switch is arranged in the vicinity of a hammer support point. SOLUTION: This keyboard device 1 is provided with a chassis 2 having a hammer support point 12, plural keys 3 supported turnably on the chassis 2, a lubricant L applied to the hammer support point 12, plural hammers 4 supported on the support point 12 turnably and interlocking with the plural keys to be turned, a key switch 20 attached to the chassis 2 to detect key push information for the plural keys 3, and a lubricant flow-in preventing wall 53 positioned upright between the support point 12 and the key switch 20 to prevent the lubricant L from flowing into the key switch 20.
申请公布号 JP2000122658(A) 申请公布日期 2000.04.28
申请号 JP19980297405 申请日期 1998.10.19
申请人 KAWAI MUSICAL INSTR MFG CO LTD 发明人 NIITSUMA SHINJI
分类号 G10B3/12;G10H1/34 主分类号 G10B3/12
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